Self Assessment. Flat £125. No Surprises.

Self Assessment

We ensure your tax return is prepared and filed accurately, on time, and fully compliant with HMRC regulations. Our expert team handles the entire process—maximising all eligible reliefs and allowances to minimise your tax liability.

Do You Need to File a Self Assessment Tax Return?

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If any of the following apply to you, it's time to get your tax return sorted - and we're here to make it effortless:

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You are Required to File if You:

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Are self-employed and earned more than £1,000 in the tax year
Are a partner in a business partnership
Rent out property and earn income not taxed at source
Receive untaxed income, such as tips, commissions, or freelance earnings
Claim Child Benefit and your income exceeds £50,000
Have capital gains from selling assets like shares or property
Earn income from abroad or have foreign investments
Are a company director (unless all income is taxed under PAYE)
Receive dividends or savings interest above your tax-free allowance
Have income over £100,000, even if taxed through PAYE
Want to claim tax relief on pension contributions or charitable donations
Have income from trusts, settlements, or estates
Need to prove income for mortgage or visa applications
Are subject to the High Income Excess Relief Charge

When to File Your Self Assessment

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Timing is everything — here are the key deadlines you need to know:

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5 October: Register with HMRC if you’re filing for the first time
31 October: Deadline for paper tax returns
30 December: Deadline to file online if you want tax collected through PAYE
31 January: Final deadline to file online and pay any tax owed

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Missing these dates could mean automatic penalties —up to £100 or more.

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Not sure if you need to file?

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We’ll help you figure it out — and if you do, we’ll handle the whole process securely.

How It Work

How We Handle Your Tax

From documents to submission — we make tax returns effortless and accurate.

Start with a Quick Online Assessment

Fill out a short, easy form to give us an overview of your income and tax situation, it only takes a few minutes.

Get Matched with a Tax Expert

We’ll assign a dedicated tax specialist who understands your situation and will prepare your return accurately.

Relax While We File for You

We’ll review everything with you, submit your return to HMRC, and ensure it’s done right and on time, no stress, no hassle.

Ready to file now?

Let’s get your Self Assessment sorted today.

Get Started now

What Our Clients Say

Hear how we’ve simplified tax and accounting for our clients

“MyTaxFiling made my self-assessment so simple. I used to dread tax season, but now it’s stress-free and accurate every time."

Jane Doe

HealthCare Solutions

“As a small business owner, VAT returns were always a headache. The MyTaxFiling team handles everything on time, and I can finally focus on growing my business..”

Robert Lee

Financial Services

“Professional, clear, and always approachable. MyTaxFiling helped me save money through better tax planning. Highly recommended for anyone who wants reliable advice."

Jessica Taylor

Creative Innovations

"Brioza turned our dreams into reality with their innovative design and exceptional craftsmanship. Their professionalism and responsiveness made the process smooth and enjoyable. recommend them."

Michael B.

Real Estate Ventures

"Brioza's team was a pleasure to work with. They brought our vision to life with incredible attention to detail and professionalism. The final result exceeded our expectations."